FLASH 32M { SI_ALL 5M { SI_DESC 4K SI_ME { CSE_LAYOUT 8K CSE_RO 1588K CSE_DATA 512K # 64-KiB aligned to optimize RW erases during CSE update. CSE_RW 3008K } } SI_BIOS 27M { RW_SECTION_A 8M { VBLOCK_A 64K FW_MAIN_A(CBFS) RW_FWID_A 64 ME_RW_A(CBFS) 3008K } RW_LEGACY(CBFS) 2M RW_MISC 1M { UNIFIED_MRC_CACHE(PRESERVE) 128K { RECOVERY_MRC_CACHE 64K RW_MRC_CACHE 64K } RW_ELOG(PRESERVE) 16K RW_SHARED 16K { SHARED_DATA 8K VBLOCK_DEV 8K } # The RW_SPD_CACHE region is only used for brya variants that use DDRx memory. # It is placed in the common `chromeos.fmd` file because it is only 4K and there # is free space in the RW_MISC region that cannot be easily reclaimed because # the RW_SECTION_B must start on the 16M boundary. RW_SPD_CACHE(PRESERVE) 4K RW_VPD(PRESERVE) 8K RW_NVRAM(PRESERVE) 24K } # This section starts at the 16M boundary in SPI flash. # ADL does not support a region crossing this boundary, # because the SPI flash is memory-mapped into two non- # contiguous windows. RW_SECTION_B 8M { VBLOCK_B 64K FW_MAIN_B(CBFS) RW_FWID_B 64 ME_RW_B(CBFS) 3008K } # Make WP_RO region align with SPI vendor # memory protected range specification. WP_RO 8M { RO_VPD(PRESERVE) 16K RO_SECTION { FMAP 2K RO_FRID 64 GBB@4K 448K COREBOOT(CBFS) } } } }